VSF Rolex Day-Date 40mm Ref. 228239 Sunburst Blue
The integration of the Dandong 3255 movement elevates this VSF release above legacy competitors in mechanical reliability.
Powered by Dandong Caliber 3255 Auto
The Dandong Caliber 3255 represents a significant leap in replica horology for the Day-Date family. Its architecture features a decorated rotor and bridges mirroring the genuine Rolex 3255, but the defining technical achievement is the instantaneous day and date jump at midnight, executing within a fraction of a second. The regulation utilizes a traditional index system rather than a true Microstella, yet it achieves excellent amplitude and chronometric stability across its power curve.
⏱ Accuracy Profile:
The VSF Dandong 3255 caliber typically operates within a tight tolerance of ±3–5 seconds per day when fully wound, demonstrating superior isochronism compared to standard Asian ETA clones.
- ✅ Power Reserve: 60+ Hours (Dandong clone caliber)
- ✅ Complications: Center hour, minute, seconds, unrestricted rapid-setting for instantaneous day and date in apertures.
- ✅ Winding Direction: Bidirectional automatic winding via perpetual rotor.
Technical Specifications
THE BUILD904L Oystersteel
Machined to an exact 11.8mm thickness with precise lug tapering. Features polished case sides and brushed lug hoods, weighing in at 146.8g.
THE DIALSunburst Blue
Dynamic navy blue shifting under varied lighting. Features crisp white text printing, well-proportioned Roman numerals, and accurate day/date aperture framing.
THE BEZELFluted 904L Steel
Sharp, deep cuts that capture light effectively, though lacking the precise density and slightly warmer hue of genuine solid white gold.
THE BRACELETPresident Bracelet
Semi-circular three-piece links with alternating brushed outer and polished center segments. Secured by a concealed folding Crownclasp.
Why VSF for This Reference?
Many collectors ask: “Why not GMF?”
While GMF has historically dominated the Day-Date market with a wider variety of dials, they utilize the SA3255 or modified ETA clones which suffer from sluggish date changes and lower power reserves. VSF provides the Dandong 3255 movement, offering a genuine 60+ hour reserve, exceptional reliability, and a crisp instantaneous midnight jump that mimics the genuine caliber.
Full Disclosure: The 146.8g weight of the 904L Oystersteel construction is significantly lighter than the ~200g+ weight of a genuine solid 18k white gold Day-Date, resulting in a different tactile wrist presence.
Data Sheet
| MODEL REFERENCE |
m228239-0007 |
| FACTORY / VERSION |
VSF Edition |
| MOVEMENT |
Dandong Caliber 3255 Auto |
| CASE MATERIAL |
904L Oystersteel |
| WEIGHT & THICKNESS |
146.8g | 11.8mm |
| CRYSTAL & LUME |
Sapphire with AR-Coated Cyclops | Chromalight-style |
| DIMENSIONS |
40mm × 47.4mm × 11.8mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE |
30m stated — professional pressure test recommended before swimming |
Collector Q&A
Q: Does the day and date change instantly at midnight like the genuine caliber 3255?
A: Yes. The VSF Dandong 3255 movement features an instantaneous day and date jump mechanism that snaps over exactly at midnight, unlike older clone movements that slowly drag the date wheel between 10 PM and 2 AM.
Q: How does the weight of this VSF replica compare to the genuine Rolex 228239?
A: The genuine reference 228239 is cast in solid 18k white gold, weighing over 200 grams. This VSF replica is machined from 904L Oystersteel, weighing precisely 146.8g. While visually similar, it will feel noticeably lighter on the wrist.
Q: Is the blue dial color accurate to the genuine sunburst blue?
A: VSF has achieved a highly accurate deep navy sunburst effect. However, under direct, harsh lighting, the replica dial may present slightly more vibrant than the slightly muted, metallic undertone of the genuine Rolex dial batch.
Q: What is the known limitation of the VSF President bracelet clasp?
A: While the concealed Crownclasp operates securely, the hinge mechanism tolerances are slightly looser than genuine. Additionally, the coronet pull-tab can feel slightly stiff during the initial break-in period compared to the smooth release of a factory Rolex clasp.
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